1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344699177c7c5648e6861a34ce44bb44c75da498945ab434cf262ebb40a80979. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c45ab93e-ab19-4355-b5b9-ba4ad7171dd3.json and https://artists.proofprofile.net/proofs/artist/c45ab93e-ab19-4355-b5b9-ba4ad7171dd3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Ihr Augen worzu nutzt ihr mir: Ihr Augen worzu nutzt ifr mir
Svenska Mästerpianister - Roos / Scheja / Wikström - Piano Music
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5d0c9647f17a52e286551bdae05be0eb578690b9233fa6017362d822a79e2e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1153106 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6c8f96f386acb85e8716089cc3c38bbe92535c4dc0b54dbd6a096025f51526. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1153107 — a six-check JSON result.
Harpsichord Sonata No. 1 in E-Flat Major, BeRI 225: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a2e5b8e6b536f56e4a603170421917f67565aa63203947e87471e64f89f06c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151001 — a six-check JSON result.
Harpsichord Sonata No. 1 in E-Flat Major, BeRI 225: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ada49f2f5a66e3634c6c4b05e174daac36ab3cf08d698335a4e0a76944b962f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151002 — a six-check JSON result.
Harpsichord Sonata No. 1 in E-Flat Major, BeRI 225: III. Non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88ed7f80f8004ebf7897f254d0550edf343aea05db91e84fe1968245ef4ac35. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151003 — a six-check JSON result.
Harpsichord Sonata No. 1 in E-Flat Major, BeRI 225: IV. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c54307774ef6204377197cdda794794ce7e7bf0887962c5bd5431f5b31413eb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151004 — a six-check JSON result.
Harpsichord Sonata No. 2 in D Major, BeRI 226: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40db0831a07094c06f46ae2076ae8cea5605ee878978471a5d554e8c67ed5f62. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151005 — a six-check JSON result.
Harpsichord Sonata No. 2 in D Major, BeRI 226: II. Lento non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c7f606ee280d7e4e72a4dd9b77fa249489384ddc620867f89de56ece5fe62f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151006 — a six-check JSON result.
Harpsichord Sonata No. 2 in D Major, BeRI 226: III. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1641c3132cfbe4acaafeb112099fd77320d1b3c6f57f8cecfbdfc3e765ab15. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151007 — a six-check JSON result.
Harpsichord Sonata No. 2 in D Major, BeRI 226: IV. Non troppo allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9bd84dfa677643f1f56ea4c47615d0ee6bb17891d057888d3841af5297b7be. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151008 — a six-check JSON result.
Harpsichord Sonata No. 2 in D Major, BeRI 226: V. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480ba5f13df409eff9bff540eb674d3d5a19e1f6c3beea4952228931b38ad58a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151009 — a six-check JSON result.
Harpsichord Sonata No. 3 in G Major, BeRI 227: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5c7c9d775d2c4c7d02668ae4afb1c76ff8bf8a94652db3ed3956923ffe3fd6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151010 — a six-check JSON result.
Harpsichord Sonata No. 3 in G Major, BeRI 227: II. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd908e2a430cd6f05bad18c75941eefc899d1635d58d480c99cefb940789dcc5e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151011 — a six-check JSON result.
Harpsichord Sonata No. 3 in G Major, BeRI 227: III. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83eac26e32574d1991eacfd4c4bae0587797ea61e9d4c4ea676fb351f9baa89. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151012 — a six-check JSON result.
Harpsichord Sonata No. 3 in G Major, BeRI 227: IV. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d5c54a282b78f9fe916e4a8972a500dc57527d8ebc4df7156ecc5a41686b53. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151013 — a six-check JSON result.
Harpsichord Sonata No. 3 in G Major, BeRI 227: V. Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb04188bc5274b2ca549dcf0a1ff9a6cc88dd7c7623b6826677c72c4de50a5b5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151014 — a six-check JSON result.
Harpsichord Sonata No. 4 in D Major, BeRI 228: I. Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4641af15db8b0445e88e93221460dee3d98e24f6373da1cbcace9ac4545ba1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151015 — a six-check JSON result.
Harpsichord Sonata No. 4 in D Major, BeRI 228: II. Carillon Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c090c8ae4c972ac0ddc3c78c0621902f88a492b887a8a49862694feca891f7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVOZ1151016 — a six-check JSON result.